SS Niles Bottle Stoppers SS-4000 Contemporary Whiskey Bottle Stopper Turning Kit - 5 pack

These Cosmopolitan Whiskey Stoppers feature five O-rings and are designed to fit bottles with larger openings. Made from stainless steel, Niles Bottle Stoppers seal opened bourbon, scotch, and larger wine bottles, helping preserve freshness while adding a refined, contemporary look.

The clean, modern profile adds elegance to any custom stopper you create, while the flat top provides ample space for custom engraving, making it ideal for wedding gifts, anniversaries, and personalized keepsakes.

This contemporary stopper has a 13/16″ top diameter and uses five nitrile O-rings with a slightly softer durometer for improved compression. This design allows two O-rings to make full contact with the inside of the bottle, creating a superior seal compared to standard two- or three-ring designs. The stopper measures 1-1/2″ tall (not including the stud) and weighs a solid 2.3 oz. Extra stainless steel at the top provides additional surface area for laser engraving of names or dates.

Each stopper is machined from solid 304 (18-8) stainless steel and includes a 3/8″ × 16 TPI threaded stud for a secure connection to your custom-turned handle. When used with a Niles Bottle Stoppers self-tapping mandrel, no threaded insert is required. For most woods, use a 5/16″ stub drill bit; for dense woods, acrylics, or resins, use an 11/32″ stub drill bit.

To use: Insert the stopper by pressing down while gently twisting to achieve a tight seal. Do not push straight down.

To remove: Gently pull upward using a twisting or rocking motion.